Recoded sayhooks, now uses SM's silent/public chat triggers.

Began making set functions for the commands that will use them later.
Removed all sayhook cvars.

src/zr/weapons/weapons.inc

@@ -118,6 +118,7 @@ WeaponsOnCommandsCreate()
 {
     // Forward event to sub-modules.
     RestrictOnCommandsCreate();
+    ZMarketOnCommandsCreate();
 }
 
 /**